<!DOCTYPE html>
<html lang="en">

    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>Document</title>
        <script src="./lib/vue-2.4.0.js"></script>
    </head>
    
    <body>
        <div id="app">
            <a href="" @click.prevent="flag=true">登录</a>
            <a href="" @click.prevent="flag=false">注册</a>

            <login v-if="flag"></login>
            <register v-else="flag"></register>
        </div>

        <script>
            Vue.component('login', {
                template: '<h3>登录组件</h3>'
            });

            Vue.component('register', {
                template: '<h3>注册组件</h3>'
            });

            // 创建 Vue 实例，得到 ViewModel
            var vm = new Vue({
                el: '#app',
                data: {
                    flag: true
                },
                methods: {}
            });
        </script>
    </body>
</html>